润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2013年
7期
16-21
,共6页
张翔%李克智%李贺军%付业伟%费杰
張翔%李剋智%李賀軍%付業偉%費傑
장상%리극지%리하군%부업위%비걸
纸基摩擦材料%云母%表面改性%摩擦磨损性能
紙基摩抆材料%雲母%錶麵改性%摩抆磨損性能
지기마찰재료%운모%표면개성%마찰마손성능
paper-based friction material%mica%surface-modified%friction and wear performance
采用湿法工艺制备5种不同含量云母改性纸基摩擦材料,利用惯量摩擦试验机研究云母含量对摩擦力矩线和动、静摩擦因数及磨损率的影响;同时对不同压力和转速条件下动摩擦因数的变化趋势进行研究。利用扫描电子微镜观察纸基摩擦材料磨损后的表面形貌。研究结果表明:随着云母含量的增加,制动时间增加,摩擦力矩曲线降低动摩擦因数减小而静摩擦因数增大,磨损率降低;随着制动压力和转速的增加,动摩擦因数减小;循环制动过程中,母含量较大的试样制动稳定性较好,且随着云母含量的增加,摩擦表面易形成润滑性能良好的固体润滑膜,有利于提材料的耐磨性能。
採用濕法工藝製備5種不同含量雲母改性紙基摩抆材料,利用慣量摩抆試驗機研究雲母含量對摩抆力矩線和動、靜摩抆因數及磨損率的影響;同時對不同壓力和轉速條件下動摩抆因數的變化趨勢進行研究。利用掃描電子微鏡觀察紙基摩抆材料磨損後的錶麵形貌。研究結果錶明:隨著雲母含量的增加,製動時間增加,摩抆力矩麯線降低動摩抆因數減小而靜摩抆因數增大,磨損率降低;隨著製動壓力和轉速的增加,動摩抆因數減小;循環製動過程中,母含量較大的試樣製動穩定性較好,且隨著雲母含量的增加,摩抆錶麵易形成潤滑性能良好的固體潤滑膜,有利于提材料的耐磨性能。
채용습법공예제비5충불동함량운모개성지기마찰재료,이용관량마찰시험궤연구운모함량대마찰력구선화동、정마찰인수급마손솔적영향;동시대불동압력화전속조건하동마찰인수적변화추세진행연구。이용소묘전자미경관찰지기마찰재료마손후적표면형모。연구결과표명:수착운모함량적증가,제동시간증가,마찰력구곡선강저동마찰인수감소이정마찰인수증대,마손솔강저;수착제동압력화전속적증가,동마찰인수감소;순배제동과정중,모함량교대적시양제동은정성교호,차수착운모함량적증가,마찰표면역형성윤활성능량호적고체윤활막,유리우제재료적내마성능。
Paper-based composite friction materials containing five different mica contents were prepared using the paper-making process. The effects of mica content on tribological properties such as friction torque curves,dynamic friction coefficient,static friction coefficient and wear rate were studied using an inertia friction tester,and the sensitivity of dynamic friction coefficient was also investigated. Worn surfaces of samples were analyzed using scanning electron microscope. The results reveal that with mica content increasing,braking time is increased and torque curves got lower, while friction coefficient and wear rate are decreased. The dynamic friction coefficient is declined as braking pressure and rotating speed are increased. Samples with higher mica content exhibits more stable friction coefficient in the continuous braking process. Lubricating film leading to lower wear rate is formed in the worn surface as the mica content is increased.